Ophthalmic mounting



Oct. 13, 1931. N. NLBAKER OPHTHALMIC MOUNTING Filed Jan. 28. 1928 Patented 'Oc t.1 1 3', 193 1 a NELSO MI'BA EB, oF so-uTHBRinGE. Massmmsm lissmiton" To Awa en s 7 TroAr. commmyjor SOUTHBRIDGE,

I This metastasis m rovement it; clampin'g'meansfand has particular reference, to meansfor clztmpingjtogether {the parts of anophthalmic mountingr; I i The principal objectof-the invent on sto' provide increased: thread bearlngg for; the clamping members. I

Another object of the invention -vjide a pivot support or hearing for the clamped member. which will avoid the backing out or loosening ofthe clamplng means.

I Anotherobject-of theinvent-lon isto providej'meansforsecuring. the pivot support. rotation as the cla1n'pedj members against moved;

that will be economicahieflicient and effective. Other Objects and advantages of the 1nven v tionwill be apparent from the following description taken inconnection with the accompanying drawings, and it will be understood that many changes may be made in the de-- tails of construction and arrangement of ing from the spirit of the invention as expressed in the accompanylng clauns'. I,

therefore, do not wish to be limited to the. exact details of construction and arrange ment of parts shown and described as the preferred forms only have been sho-wnby way of illustration. I- i .Referring to the drawings: i Fig. 1 is a front elevation of an ophthalmic 'mounting embodying the invention;

Fig.1 2 is a fragmentary enlarged plan view of a clamping member; Fig. 3 is'a sectional view on line 3 3 of Fig. 5 is a fragmentary sectional view on line 5 -5 of Fig. 3 takenthrough the screw connection; 7 p q Fig. 6 is a top or plan View of an endpiece member;' 7

Fig. 7 is afront elevation member shown in Fig."6;j I 1 Fig. 8 is an enlarged sectional; view on line 88 of Fig. 6 showinga'modified form of the invention;

of the endpiece fornr rtiALMIo lvioun'iiino .-A plli cation file ri ianuary a8, 1928.. sriall No. o.217'.-

Another obj ect isto provide a -device parts shown and describedw'ithout depart Fig. 4 is abotttm plan view of Fig. l i 5 mAssnennssrrs; AVOLUNTIARY Asso'cIA'rI'oN I Q eIeVationotthe ber, shown in Fig. 10 is a bottonr p lan view of Priorto the present inventionclamp screws were threadeddirectly into5oneofithe straps impractical due; gtg the; ragtchti actionv bvfithiep I the screwfwhich e le p become loose.

back out and 'ThiS action a-lso took members due to'the.

mused p H v movmentfofthe lenses during the cleaning thereof, or k the like; and likewise causedthe screws in thelens clamps to eventuallyback out e v vThepresent inventio or iendpieee screws so be tightened without the threads and also bearing for, theclamp that .the, screws may. stripping or breaking placelnthe and become loose. v r n.les.the edif- .fic 1t es by. P OVIdi Ig: anincreas d thread provides a pivot bearing.fortheternple which willnot causeithe screw toback out; andbei come loose as n the'prior. art constructions,

' rlng more .partiql arlyf oth da e'te'rnplesl are positioned inth'e ende5" p ece'members 2 which are providedj withlthe i a ed ez s rap le pm lnb 'rs.a -4 us in e urin e ndp ec st 'fl s e f 'l lhe lensesfi are connected {bridge nieinber 6,' .which' also provided adyjacent its endswith g V .,,claInp members 3 and 4 by which 'the bridge is secured" to the lenses. The endpiece mem- ..bers 2 are also provided pivotall'y s ppqgt the; temp e/ "The 1.16m

' clamps or straps3 an j flfare termed-with (al gn d, Op bn b, --,Wh h' i i 1 Pi receive the tubular memberQ'whi ch is formed wi h a thre dbere he her the. S rew centrallygby the a ademanates i i p I I p I .withga second pair a of'sp'aced ears 7 and8 which are adapted to portions 11.

member :extending betwegen I the spaced member 10, which is adapted to be positioned in the threaded bore of the tubular member 9. The tubular member 9 is provided with the flattened outer faces 11 adapted to engage a corresponding flattened portion of the openingin which-it is linsertedandi isrthereby held against rotation when the screw 10 is tightened. The tubular member 9 "is also providedwith:the:fianged portion-l2-adapted toifit within the'countersunk portion-of the opening in the lens strap 4; and thereby draws the lens clamps or straps together when-the screw 10 is tightened.

Figs. 6, 7 8, 9 and 10: --sho,w;a slight modification in which the tubular member 9 is providedwith a'sh-oulder li3 havingthe flattened In this instance the flattened portion does not extend the entire length of the tube was s'hown in -the previous const-rnm tion and it will "be notedthatthetribe 9 is alsorused as a-pivotior the temole 1. ,Byreterence to "8 and 10*it wi'll be seen that the templelmay be moved-about theytubular 1ne1nber"9 without causing any frictional or ratchet action on-the-screw*l0, as :prcviously stated in the prior art constructions; as the tubular member while serving as apivotfor the temple 1 is locked againstrotationinflthe ear 7 by'the flattened portio "11. "lhetubnla-r member also provides a f-longer thread bearing for the screwlO so that it may be tightened without stripping or breaking v the threads. jTheLtubular member 9 is also provided'w'ith a flanged portion'iil asinthe-previous construction. A

"The construction jshownin Figs. 2, 3 and 4: accomplishes the same results as that shown the modified form. the only difi'erencebeingin the mechanicalconstruction. "It will be seen that {it "is optional as v to whether the tubular m mher '9 extends -.narti'a'lly thren h the 161 s as shown in '3, or entir'el y through "the'lensafli artia ly into the opening in the o posite ilainp oristrap member as shown 'in'Fig .8,

l-Er rn athe zforegoing id e rintion it will be seen that TIIhave p ovided simple durable, inexpensive and efieetive means f r. accom- 1 1 h ns the obi ects oflthe invention.

HavingdesciiihedrnvfinventiomLclaim;

v1- Means-for uniting the parts i ofv monhthalmic mount nmc mnrisin 9: am ai fsna d members having aligned openings therein meof ,saidionenings ihavin a contour shape h ch d parts from a fnl ].--,circie. az secnred hers and having an open'c-ngthenein EaJig-ned withJ-theopenings in-saidasnaced members a tubular member in the arlignedioneningsq said tube vhaving en ged portion enga in With \QHQ Yofthersnaced:members, a relatively long portion-extending into vthe opening {111 the secured {memberand an intermediate shouldered portieniof .substantially the .s ame contour shape as the opening having its contour shape departing from a full circle and extending therein substantially the iull length of said opening and means extending through the opening in the spaced member opposite the spaced member'engaged by the enlarged portion .5 of the :tube adapted to engage with the 'tubular --1nemberto 'tlraw the --two spaced members together.

2. Means for :GOllIlQGtlIlg' the parts not an ophthalmic emounting comprising a pair 0" spaced members having aligned openings therein-and interlocking means adjacent one of said openings, a secured member extending opening aligned with spacedymembers, atuhular zmember in "the aligned openings, said tube having zL11 1Gl1- large'd portion en'gaging with one i of said spaced members, a reducedrport-ioni extending into the secured member and (having intermediate interlocking -means bQiZWEBfiIl :the enlarged portion and roducedcportionadapted to engage with the interlocking .rne2rns adj acent the opening in the:spacedcmemberand extending snbstantiallyrthc'i nll' l'ength oi"; said opening and a screw member extending through the opening in :the spaced :rnember opposite the spaced zmernber engaged by the enlarged portion :of the tube adapted-to $611- gage with the tubular member to draw-the two sp ace dmembers together.

1 TNEIJSQN BAKER.

b tweentthe'eispaeed :membcrs and having an the openings in said 

